What Is Tooth Mobility?

The main factors causing tooth displacement

Tooth displacement

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Teeth completely germinate and reach the occlusal plane. A stable occlusal relationship and adjacent contact relationship have been established. However, the position of the tooth changes due to the destruction of the periodontal support tissue or external forces / occlusal forces. .

Western Medicine Name

The main factors causing tooth displacement

1. Destruction of periodontal support tissue

The normal position of the teeth in the dental arch depends on healthy periodontal support tissue. Periodontal disease patients have alveolar bone resorption around the roots of their teeth, reduce support tissue, lose balance with the occlusal force that the teeth receive, and cause the teeth to shift in the direction of the force. Periodontal granulation tissue can also lengthen or displace affected teeth.

2. Change in bite force

Normal contact with adjacent teeth, good tooth form and tip slope, dentition integrity, balance of occlusal force with lip, cheek, and tongue muscles around the teeth, long-term bad bite habits, etc. Changes in various forces are important factors that cause tooth displacement. For example, the most common example is the absence of prosthetic treatment for a long time after tooth loss, which can cause adjacent teeth to tilt toward the missing tooth space, elongate the jaw teeth, and cause tooth displacement.

Tooth trauma

Because the maxillofacial region is impacted by external force or bites a hard object, it can cause tooth displacement, which is more common in the anterior teeth.

Teeth completely eruption, reaching the occlusal plane, and after establishing a stable occlusal relationship and adjacent contact relationship, the position of the tooth changes due to the destruction of the periodontal support tissue, or external forces / occlusal forces, etc., mainly due to the extension of the affected tooth, the adjacent Teeth tilt towards the missing tooth space. In patients with periodontitis, the lip of the upper and lower front teeth is displaced, and a large interdental space appears, which is referred to as a fan displacement.

According to the complete eruption of the teeth and reaching the occlusal plane, a stable occlusal relationship and adjacent contact relationship have been established, but the tooth position has been changed due to damage to the periodontal support tissue, or external forces / occlusal forces and other factors for diagnosis.

According to the history of trauma, oral health status, periodontal clinical indicators, inspection of occlusal relationship to identify the specific cause of tooth displacement, and then appropriate treatment.

The reason for tooth displacement should be clarified before treatment, so as to carry out targeted treatment.

1. Tooth displacement caused by periodontitis should be treated as early as possible, and professional systemic periodontal treatment should be performed to completely remove inflammation around the teeth and prevent further increase of tooth displacement. It also needs to be reviewed regularly. Some anterior teeth may be loosened and displaced, and these teeth may be fixed together to increase the overall stability and restore the original position.

2. Tooth displacement caused by occlusion problems should be examined and diagnosed by a professional dentist and treated accordingly. If it is accompanied by periodontitis, the periodontal system should be treated first, and the teeth should be adjusted by grinding, orthodontic treatment, and loosening.

3. The earlier the tooth displacement caused by trauma, the better the fixed treatment. Generally, the teeth can be restored to health after fixing the teeth with slight displacement. For teeth with moderate to severe displacement or detached due to trauma, symptoms related to endodontic inflammation usually occur after a period of time, so it should be reviewed regularly. If problems occur, they should be dealt with in time.

Some patients with periodontitis can reset themselves after treatment to eliminate periodontal pockets. However, the tooth displacement caused by the occlusion problem can be improved after the occlusion relationship is improved and the occlusion relationship is gradually stabilized. Sometimes complete improvement of tooth displacement needs to be considered with orthodontic treatment.

Establishing good oral hygiene habits, regular professional oral examinations and oral cleansing are very important measures to prevent tooth displacement. ^[1-2]